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US20050253790A1 - Display apparatus and image reading/displaying system incorporating the same - Google Patents

Display apparatus and image reading/displaying system incorporating the same Download PDF

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Publication number
US20050253790A1
US20050253790A1 US10/520,363 US52036305A US2005253790A1 US 20050253790 A1 US20050253790 A1 US 20050253790A1 US 52036305 A US52036305 A US 52036305A US 2005253790 A1 US2005253790 A1 US 2005253790A1
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Prior art keywords
light
light emitting
display apparatus
display
panel
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US10/520,363
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English (en)
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Hideki Uchida
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Sharp Corp
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Sharp Corp
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Assigned to SHARP KABUSHIKI KAISHA reassignment SHARP KABUSHIKI KAISHA ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: UCHIDA, HIDEKI
Publication of US20050253790A1 publication Critical patent/US20050253790A1/en
Assigned to SHARP KABUSHIKI KAISHA reassignment SHARP KABUSHIKI KAISHA CORRECTED COVER SHEET TO CORRECT ASSIGNEE ADDRESS, PREVIOUSLY RECORDED AT REEL/FRAME 016820/0150-0152 (ASSIGNMENT OF ASSIGNOR'S INTEREST) Assignors: UCHIDA, HIDEKI
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    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/60—OLEDs integrated with inorganic light-sensitive elements, e.g. with inorganic solar cells or inorganic photodiodes
    • H10K59/65—OLEDs integrated with inorganic image sensors
    • H01L27/1446—
    • H01L31/153—
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/00127—Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture
    • H04N1/00129—Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture with a display device, e.g. CRT or LCD monitor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/024—Details of scanning heads ; Means for illuminating the original
    • H04N1/02418—Details of scanning heads ; Means for illuminating the original for picture information pick up and reproduction
    • H04N1/02427—Details of scanning heads ; Means for illuminating the original for picture information pick up and reproduction in different planes
    • H04N1/02436—Details of scanning heads ; Means for illuminating the original for picture information pick up and reproduction in different planes using a single head selectively and alternately arranged to scan in the different planes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/024—Details of scanning heads ; Means for illuminating the original
    • H04N1/028—Details of scanning heads ; Means for illuminating the original for picture information pick-up
    • H01L27/14665—
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/024—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof deleted
    • H04N2201/02452—Arrangements for mounting or supporting elements within a scanning head
    • H04N2201/02454—Element mounted or supported
    • H04N2201/02456—Scanning element, e.g. CCD array, photodetector
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/024—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof deleted
    • H04N2201/02452—Arrangements for mounting or supporting elements within a scanning head
    • H04N2201/02454—Element mounted or supported
    • H04N2201/02458—Lens or optical system
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/024—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof deleted
    • H04N2201/02452—Arrangements for mounting or supporting elements within a scanning head
    • H04N2201/02454—Element mounted or supported
    • H04N2201/02462—Illuminating means
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/024—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof deleted
    • H04N2201/02452—Arrangements for mounting or supporting elements within a scanning head
    • H04N2201/02454—Element mounted or supported
    • H04N2201/02464—Transparent cover or window
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/024—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof deleted
    • H04N2201/02452—Arrangements for mounting or supporting elements within a scanning head
    • H04N2201/02479—Mounting or supporting means
    • H04N2201/02481—Single piece support, e.g. molded plastic support
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/024—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof deleted
    • H04N2201/02495—Constructional details not otherwise provided for, e.g. for ease of assembly, allowing access to the scanning elements, integrated reinforcing members
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/024—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof deleted
    • H04N2201/02497—Additional elements, e.g. sheet guide plates, light shields
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K39/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic radiation-sensitive element covered by group H10K30/00
    • H10K39/30—Devices controlled by radiation
    • H10K39/32—Organic image sensors
    • H10K39/34—Organic image sensors integrated with organic light-emitting diodes [OLED]
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/80—Constructional details
    • H10K50/805—Electrodes
    • H10K50/81—Anodes
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/80—Constructional details
    • H10K50/805—Electrodes
    • H10K50/81—Anodes
    • H10K50/813—Anodes characterised by their shape
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/80—Constructional details
    • H10K50/85—Arrangements for extracting light from the devices
    • H10K50/858—Arrangements for extracting light from the devices comprising refractive means, e.g. lenses
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • H10K59/126—Shielding, e.g. light-blocking means over the TFTs
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/30—Devices specially adapted for multicolour light emission
    • H10K59/38—Devices specially adapted for multicolour light emission comprising colour filters or colour changing media [CCM]
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/80—Constructional details
    • H10K59/875—Arrangements for extracting light from the devices
    • H10K59/879—Arrangements for extracting light from the devices comprising refractive means, e.g. lenses
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K77/00—Constructional details of devices covered by this subclass and not covered by groups H10K10/80, H10K30/80, H10K50/80 or H10K59/80
    • H10K77/10—Substrates, e.g. flexible substrates

Definitions

  • the present invention relates to a display apparatus and an image reading/displaying system incorporating the same, and more particularly to a display apparatus including a light emitting device for each pixel and an image reading/displaying system incorporating the same.
  • image display apparatuses such as flat panel displays have been actively researched and developed.
  • the performance of such image display apparatuses has been improved dramatically with larger screen sizes, a multi- or full-color display capability, a gray scale display capability, and a motion picture display capability.
  • the present invention has been made in view of the above, and has an object to provide a display apparatus capable of reading an image in addition to displaying an image, and an image reading/displaying system incorporating the same.
  • a display apparatus of the present invention includes: a display panel including a light emitting device for each of a plurality of pixels for displaying an image by using light that is output from the light emitting device toward a panel front side; and a light receiving device provided on the display panel for each of the plurality of pixels for receiving a portion of light output from the light emitting device toward a panel back side that is reflected by an irradiated object located on the panel back side.
  • the display panel may be an active matrix type display panel including a substrate and a light emission control section provided on the substrate for controlling light emission of the light emitting device, with the light emitting device and the light receiving device being provided on the substrate.
  • the display panel may include a color filter provided so as to overlap with at least a portion of a light receiving surface of the light receiving device.
  • the display panel may include a light blocking layer provided between the light emitting device and the light receiving device.
  • the display panel may include a light converging section provided on the panel back side of the light emitting device.
  • the light emitting device may include a light emitting layer containing light emitting molecules, and a pair of electrodes opposing each other via the light emitting layer therebetween.
  • One of the pair of electrodes that is provided on the panel back side may be made of a transparent conductive material.
  • One of the pair of electrodes that is provided on the panel back side may include an opening therein.
  • the light emitting molecules contained in the light emitting layer are oriented so as to be generally parallel to a surface of the display panel on the panel back side and generally perpendicular to a straight line between the opening and the light receiving device.
  • a light emitting portion of the light emitting layer is localized toward the electrode including the opening therein.
  • the light emitting device is, for example, an organic electroluminescent device.
  • the display panel may be flexible.
  • the display apparatus may further include a storage device for storing image information that is read by the light receiving device receiving light reflected by the irradiated object.
  • the display apparatus may have a function of displaying image information that is read by the light receiving device receiving light reflected by the irradiated object.
  • the display apparatus may also have a function of displaying the read image information in an inverted position.
  • An image reading/displaying system of the present invention includes: the display apparatus of the present invention; and a display medium to which the image information is written by the display apparatus displaying the read image information.
  • image reading/displaying system refers to a system having at least one of a function of reading an image and a function of displaying an image.
  • the display medium may include a display medium layer, a pair of electrodes opposing each other via the display medium layer therebetween, and a photoconductive layer provided on a display medium layer side of one of the pair of electrodes.
  • a voltage may be applied to the pair of electrodes of the display medium by using a power supplied from the display apparatus.
  • the present invention provides a display apparatus capable of reading an image in addition to displaying an image, and an image reading/displaying system incorporating the same.
  • the display panel has both a function of displaying an image and a function of reading an image, and the light used for displaying an image and the light used for reading an image are commonly output from the same light emitting device. Therefore, it is possible to display and read image information with a simple, thin and light-weight structure.
  • FIG. 1 is a cross-sectional view schematically illustrating a portion of a display apparatus 100 according to one embodiment of the present invention corresponding to one pixel.
  • FIG. 2 is a plan view schematically illustrating a portion of the display apparatus 100 according to one embodiment of the present invention corresponding to one pixel.
  • FIG. 3 is an equivalent circuit diagram illustrating an example of a light emission control section used in the display apparatus 100 .
  • FIG. 4 is an equivalent circuit diagram illustrating an example of a control circuit used in the display apparatus 100 .
  • FIG. 5 is a cross-sectional view schematically illustrating a portion of a display apparatus 200 according to another embodiment of the present invention corresponding to one pixel.
  • FIG. 6 is a plan view schematically illustrating a portion of the display apparatus 200 according to another embodiment of the present invention corresponding to one pixel.
  • FIG. 7 is a flow chart illustrating the flow of an operation from the step of reading an image to the step of displaying the read image, in a case where the display apparatus of the present invention is capable of displaying image information obtained by reading an image.
  • FIG. 8 is a block diagram illustrating an example of a detection circuit used in the display apparatus 100 .
  • FIG. 9 is a block diagram illustrating the relationship among various components in a case where an image is displayed based on a video signal produced by an arithmetic circuit in the display apparatus 100 .
  • FIG. 10 is a cross-sectional view schematically illustrating an image reading/displaying system 1000 according to one embodiment of the present invention.
  • FIG. 11A and FIG. 11B are diagrams each illustrating the relationship between an image displayed by the display apparatus 200 and an image displayed by a display medium 800 .
  • FIG. 12 is a cross-sectional view schematically illustrating another display medium 900 used in an image reading/displaying system according to one embodiment of the present invention.
  • FIG. 13 is a flow chart illustrating the flow of an operation from the step of reading an image to the step of saving the image, in a case where the display apparatus of the present invention is capable of saving, as electronic information, image information obtained by reading an image.
  • FIG. 14A , FIG. 14B and FIG. 14C are diagrams schematically illustrating an example of the shape of an opening in an electrode of a light emitting device, and an example of the relative arrangement of the opening and a light receiving device.
  • FIG. 15 is a cross-sectional view schematically illustrating a portion of a display apparatus 300 according to still another embodiment of the present invention corresponding to one pixel.
  • FIG. 16 is a cross-sectional view schematically illustrating a portion of a display apparatus 400 according to still another embodiment of the present invention corresponding to one pixel.
  • FIG. 17 is a cross-sectional view schematically illustrating a portion of a display apparatus 500 A according to still another embodiment of the present invention corresponding to one pixel.
  • FIG. 18 is a cross-sectional view schematically illustrating a portion of a display apparatus 500 B according to still another embodiment of the present invention corresponding to one pixel.
  • FIG. 19 is a cross-sectional view schematically illustrating a portion of a display apparatus 500 C according to still another embodiment of the present invention corresponding to one pixel.
  • FIG. 20 is a cross-sectional view schematically illustrating a portion of a display apparatus 600 A according to still another embodiment of the present invention corresponding to one pixel.
  • FIG. 21 is a cross-sectional view schematically illustrating a portion of a display apparatus 600 B according to still another embodiment of the present invention corresponding to one pixel.
  • FIG. 22 is a cross-sectional view schematically illustrating a portion of a display apparatus 600 C according to still another embodiment of the present invention corresponding to one pixel.
  • FIG. 23A and FIG. 23B are a plan view and a cross-sectional view, respectively, illustrating a preferred orientation of light emitting molecules in a light emitting layer.
  • FIG. 24 is a diagram schematically illustrating the anisotropy of light emission of a light emitting molecule.
  • FIG. 25A and FIG. 25B are a plan view and a cross-sectional view, respectively, illustrating an orientation of light emitting molecules in a light emitting layer.
  • FIG. 26A and FIG. 26B schematically illustrate the localization of a light emitting portion in a light emitting layer.
  • FIG. 1 is a cross-sectional view schematically illustrating a portion of the display apparatus 100 corresponding to one pixel.
  • the plurality of pixels are typically arranged in a matrix pattern. Note that in the subsequent figures, components that are substantially the same in function as those of the display apparatus 100 will be denoted by the same reference numerals and will not be further described below.
  • the display apparatus 100 includes a display panel 110 including an organic EL device 120 as a light emitting device for each of a plurality of pixels, and a light receiving device 130 provided on the display panel 110 for each of the pixels.
  • the light emitting device is not limited to an organic EL device, but may alternatively be an inorganic EL device, or an electrochemical light emitting device.
  • the display panel 110 displays an image by using light that is output from the organic EL device 120 toward the panel front side (i.e., toward the viewer, or the upward direction in FIG. 1 ).
  • the light receiving device 130 receives a portion of light output from the organic EL device 120 toward the panel back side (i.e., away from the viewer, or the downward direction in FIG. 1 ) that is reflected by an irradiated object (e.g., a display medium such as a printed matter) 10 located on the panel back side.
  • an irradiated object e.g., a display medium such as a printed matter
  • FIG. 2 is a plan view schematically illustrating a portion of the display apparatus 100 corresponding to one pixel.
  • the display panel 110 of the display apparatus 100 is an active matrix type display panel including a substrate (e.g., a glass substrate) 111 , and a light emission control section 112 provided on the substrate 111 for controlling the light emission of the organic EL device 120 .
  • the light emission control section 112 provided for each of the pixels typically includes a plurality of switching devices (e.g., TFTs) and a capacitor.
  • the light emission control section 112 may be a known light emission control section for an organic EL display apparatus as illustrated in FIG. 3 .
  • first TFT 13 connected to a scanning signal 11 and a signal line 12
  • second TFT 14 connected to the power supply Vdd and the organic EL device 120
  • capacitor 15 connected to the first TFT 13 and the second TFT 14 .
  • the organic EL device 120 and the light receiving device 130 are also provided on the substrate 111 .
  • the light emission control section 112 , the organic EL device 120 and the light receiving device 130 as described above are provided on one surface of the substrate 111 on the back side (the side away from the viewer).
  • a control circuit 132 connected to the light receiving device 130 is provided on the substrate 111 for each of the pixels.
  • the control circuit 132 typically has a function of reading out a signal, a function of amplifying a read-out signal, and a function of resetting a device for amplifying a signal.
  • control circuit 132 includes a read out transistor 21 for reading out a signal, an amplification transistor 22 for amplifying the read-out signal, a resetting transistor 23 for resetting the amplification transistor 22 , an addressing transistor 24 , etc., as illustrated in FIG. 4 .
  • the organic EL device 120 includes a light emitting layer 122 and a pair of electrodes 124 a and 124 b interposing the light emitting layer 122 therebetween, as illustrated in FIG. 1 .
  • One of the pair of electrodes 124 a and 124 b that is provided closer to the viewer, i.e., the electrode 124 a is made of a transparent conductive material (e.g., ITO), is electrically connected to the light emission control section 112 , and functions as an anode.
  • the electrode 124 b provided on the back side is typically made of a metal (e.g., Ca and Ag), and functions as a cathode.
  • the light emitting layer 122 emits light according to the level of the current supplied to the organic EL device 120 via the light emission control section 112 .
  • the anode 124 a which is provided on the viewer side (the panel front side) of the light emitting layer 122 , is made of a transparent conductive material. Therefore, light emitted from the light emitting layer 122 is output toward the viewer and thus used for displaying an image.
  • the display apparatus 100 is a so-called “bottom emission type” organic EL display apparatus, in which light that is output toward and through the substrate 111 is used for displaying an image.
  • the cathode 124 b provided on the back side of the light emitting layer 122 includes an opening 124 b 1 , and a portion of light emitted from the light emitting layer 122 is output toward the back side via the opening 124 b 1 so as to irradiate the irradiated object 10 .
  • the light receiving device 130 receives light reflected by the irradiated object 10 and detects the intensity thereof.
  • the light receiving device 130 may be, for example, a photodiode.
  • the organic EL device 120 and the light emission control section 112 of the display apparatus 100 can be manufactured by using a known method for manufacturing an organic EL display apparatus.
  • the light receiving device 130 and the control circuit 132 connected to the light receiving device 130 can also be manufactured by using a known manufacturing method.
  • the light receiving devices 130 and the control circuits 132 can be formed, on the substrate 111 on which the light emission control sections 112 of the display panel 110 are to be formed, by using a process similar to that for forming the light emission control sections 112 .
  • the monolithic substrate 111 with the light emission control sections 112 , the light receiving devices 130 , the control circuits 132 , etc., formed therein can be suitably manufactured by using, as a semiconductor layer, a polysilicon layer or a continuous grain silicon (CGS) layer having a high electron mobility.
  • CGS continuous grain silicon
  • FIG. 5 and FIG. 6 schematically illustrate a display apparatus 200 according to another embodiment of the present invention.
  • FIG. 5 is a cross-sectional view schematically illustrating a portion of the display apparatus 200 corresponding to one pixel
  • FIG. 6 is a plan view schematically illustrating a portion of the display apparatus 200 corresponding to one pixel.
  • the display apparatus 200 differs from the display apparatus 100 in that it is a so-called “top emission type” organic EL display apparatus, in which light that is output away from the substrate 111 is used for displaying an image.
  • the organic EL device 120 as a light emitting device, the light emission control section 112 , the light receiving device 130 and the control circuit 132 are provided on the viewer side of the substrate 111 .
  • the light emission control section 112 , the light receiving device 130 and the control circuit 132 are provided on one surface of the substrate 111 that is closer to the viewer, with a flattening layer 114 being formed so as to cover these components.
  • the organic EL device 120 is provided on the flattening layer 114 .
  • the electrode 124 b provided on the back side is typically made of a metal, is electrically connected to the light emission control section 112 , and functions as a cathode.
  • the anode 124 a which is provided on the viewer side of the light emitting layer 122 , is made of a transparent conductive material. Therefore, light emitted from the light emitting layer 122 is output toward the viewer and thus used for displaying an image.
  • the cathode 124 b provided on the back side of the light emitting layer 122 includes the opening 124 b 1 , and a portion of light emitted from the light emitting layer 122 is output toward the back side via the opening 124 b 1 so as to irradiate the irradiated object 10 .
  • the display apparatus 200 is of a top emission type, it is possible to employ such a structure that the organic EL device 120 is overlaid on the light emission control section 112 , or the like, whereby it is possible to increase the aperture ratio as compared to that of a bottom emission type display apparatus, and thus to realize a higher brightness and a higher definition.
  • the display apparatuses 100 and 200 can not only display image information, but also read image information.
  • An image is displayed by the organic EL device 120 , provided for each pixel, emitting light at a predetermined intensity.
  • a light emitting region E as shown in FIG. 2 and FIG. 6 contributes to the image display.
  • the organic EL device 120 is driven in an active matrix driving mode by the light emission control section 112 , which is also provided for each pixel.
  • the organic EL device 120 emits light
  • the irradiated object 10 located on the panel back side is irradiated with the light.
  • Light that is reflected by the irradiated object 10 is received by the light receiving device 130 provided for each pixel, and the intensity of the light is detected, thereby reading the image information of the surface of the irradiated object 10 .
  • the apparatus is provided with light emitting devices that emit different colors of light (e.g., organic EL devices that emit red, green and blue light)
  • color information of the surface of the irradiated object 10 can be read, whereby the image information can be read as color image information (information of a colored image).
  • the display apparatuses 100 and 200 may be capable of displaying the read image information, or saving the read image information as electronic information, or may be capable of both displaying and saving the read image information.
  • FIG. 7 illustrates an example of the flow of an operation from the step of reading an image to the step of displaying the image, in a case where the display apparatus is capable of displaying the read image information.
  • the display apparatus displaying an image (normal display state: S 1 ) is placed over a portion of the irradiated object 10 to be read by the apparatus (S 2 ). Then, the light emitting devices emit light toward the back side, and light reflected by the irradiated object 10 is received by the light receiving device 130 , provided for each pixel, and the intensity of the received light is detected as a signal (S 3 ). Then, the signal detected by the light receiving device 130 is read out by the control circuit 132 connected to the light receiving device 130 , and the read-out signal is detected by a detection circuit as image information (S 4 ).
  • the detection circuit includes a vertical addressing circuit 31 and a horizontal addressing circuit 32 for addressing and detecting the information read by the control circuit 132 , a noise canceling circuit 33 for canceling noise, etc., as illustrated in FIG. 8 .
  • the detected image information is corrected or modified by an arithmetic circuit, which is provided outside the display area, so as to be converted into a video signal (S 5 ).
  • the light emission control section 112 controls the light emitting device to emit light at a predetermined intensity based on the video signal produced by the arithmetic circuit, so as to display an image (S 6 ).
  • the light emission control section 112 may control the light emitting device to emit light at a predetermined intensity so as to write the image information on a writable display medium, which is separately provided (S 7 ), so that the image information is displayed by the display medium (S 8 ).
  • the video signal may be input directly to a driver 43 (strictly speaking, via a shift register 44 and a latch 45 ), or may be input to the driver after once writing it to a frame memory 41 , i.e., via the frame memory 41 and a controller 42 , as illustrated in FIG. 9 .
  • FIG. 10 illustrates a display medium 800 to which image information can be written.
  • the display medium 800 is a paper-like display medium such as an optically writable display element or recycled paper made of a material whose color can be changed by light.
  • the display medium 800 and the display apparatus 200 illustrated in FIG. 10 together function as an image reading/displaying system 1000 .
  • an image of interest can be copied (read) by the display apparatus 200 , and the image can be pasted (written) to the display medium 800 . Therefore, the display apparatus 100 or 200 as described above may be called a “copy-and-paste display”, and the image reading/displaying system 1000 may be called “copy-and-paste system”.
  • the image displayed by the display apparatus 200 (i.e., the read image) is displayed on the display medium 800 in an inverted position, as illustrated in FIG. 11A .
  • the display apparatus 200 is capable of displaying a read image in an inverted position, the read image can be displayed in a normal, original position on the display medium 800 by writing (displaying) an inverted version of the read image to the display medium 800 , as illustrated in FIG. 11B .
  • FIG. 12 illustrates another display medium 900 to which image information can be written.
  • the display medium 900 is an electrically writable display element including a photoconductive layer (photoelectric conversion layer) 930 .
  • the display medium 900 includes a display medium layer 920 , and a pair of electrodes 910 a and 910 b opposing each other via the display medium layer 920 therebetween.
  • the photoconductive layer (e.g., a photoconductive film) 930 is provided on one surface of the electrode 910 a that is closer to the display medium layer 920 .
  • the display medium layer 920 may be a liquid crystal layer in which the orientation of the liquid crystal molecules is changed by an applied voltage, an electrochromic layer made of an inorganic or organic insulator whose color is changed by a positive or negative charge injected into the layer, or an electrophoretic display medium layer.
  • the display medium 900 When the display medium 900 is placed over the display apparatus 100 (or the display apparatus 200 ), and the light emitting device is controlled to emit light based on the read image information, a conductivity distribution is created across the photoconductive layer 930 according to the distribution of the intensity of emitted light, whereby a voltage is applied to or a charge is injected into the display medium layer 920 according to the voltage applied between the electrodes 910 a and 910 b and the conductivity of the photoconductive layer 930 , thus writing the image information.
  • the display medium layer 920 has a memory property. If the display medium layer 920 has a memory property, only by applying a voltage in a writing operation, an image can be displayed without having to continue to apply the voltage thereafter.
  • the power for the writing operation can be supplied by the display apparatus 100 (or the display apparatus 200 ), in which case the power supply of the display medium 900 can be omitted.
  • FIG. 13 illustrates an example of the flow of an operation from the step of reading an image to the step of saving the image, in a case where the display apparatus is capable of saving, as electronic information, image information obtained by reading an image.
  • an image is read as in the operation illustrated in FIG. 7 (S 1 to S 4 ).
  • a video signal produced by an arithmetic circuit (S 5 ) is saved by storing it in a storage device (memory; not shown) provided in the display panel 110 (S 8 ), and the light emitting device is controlled to emit light based on the video signal so as to display the image at any subsequent point in time (S 9 ).
  • the produced video signal may be saved by recording it in an external recording medium (e.g., a memory card inserted into the display panel) (S 10 ).
  • the produced video signal may be transmitted to another terminal device or an external storage device by using a communication function (S 11 ) and saved therein (S 12 ).
  • the display apparatuses 100 and 200 display and read image information as described above.
  • the display apparatuses 100 and 200 each include light emitting devices (the organic EL devices 120 ) for outputting light to be used for displaying an image toward the panel front side (toward the viewer) and for outputting light toward the irradiated object on the panel back side (on the side away from the viewer), and the light receiving devices 130 for receiving light reflected by the irradiated object. Therefore, the display apparatuses 100 and 200 are capable of not only displaying an image but also reading image information of the surface of the irradiated object. Thus, the display apparatuses 100 and 200 function both as a flat display apparatus and as a flat scanner.
  • the organic EL devices 120 for outputting light to be used for displaying an image toward the panel front side (toward the viewer) and for outputting light toward the irradiated object on the panel back side (on the side away from the viewer)
  • the light receiving devices 130 for receiving light reflected by the irradiated object. Therefore, the display apparatuses 100 and 200 are capable of not only displaying an image but also
  • the display panel 110 has both a function of displaying an image and a function of reading an image, and the light used for displaying an image and the light used for reading an image are commonly output from the same light emitting device. Therefore, it is possible to display and read image information with a simple, thin and light-weight structure.
  • a flexible display panel including a flexible substrate is used as the display panel 110 , image information of a curved surface can be read by using the display panel while bending it along the curved surface.
  • the present invention is not limited thereto.
  • the shape of the opening 124 b 1 and the relative arrangement of the opening 124 b 1 and the light receiving device 130 are preferably determined so that light that is output from the organic EL device 120 via the opening 124 b 1 and reflected by the irradiated object is efficiently incident on the light receiving device 130 .
  • the opening 124 b 1 is formed so as to surround the light receiving device 130 , as illustrated in FIG. 14C , it is possible to more efficiently receive light and to reduce the influence of ambient light or stray light coming from the environment.
  • FIG. 15 illustrates a display apparatus 300 according to another embodiment of the present invention.
  • the display apparatus 300 differs from the display apparatus 200 in that the anode 124 a provided on the viewer side is a layered electrode made of a semi-transparent thin metal film (e.g., an Ag film having a thickness of 3 nm) 124 a 1 and a transparent conductive film (e.g., ITO) 124 a 2 , and that the cathode 124 b provided on the back side is made of a transparent conductive material (e.g., ITO).
  • a semi-transparent thin metal film e.g., an Ag film having a thickness of 3 nm
  • a transparent conductive film e.g., ITO
  • the anode 124 a provided on the viewer side of the light emitting layer 122 is formed by layering the semi-transparent thin metal film 124 a 1 and the transparent conductive film 124 a 2 , whereby light emitted from the light emitting layer 122 is output toward the viewer and used for displaying an image.
  • the transparent conductive film 124 a 2 is provided on the thin metal film 124 a 1 for increasing the conductivity.
  • the cathode 124 b provided on the back side of the light emitting layer 122 is made of a transparent conductive material, whereby light can be output toward the back side without having to provide an opening in the cathode 124 b.
  • FIG. 16 illustrates a display apparatus 400 according to still another embodiment of the present invention.
  • the display apparatus 400 differs from the display apparatus 200 in that the display panel 110 includes a color filter 134 that overlaps with at least a portion of a light receiving surface (the surface that is irradiated with light reflected by the irradiated object) 130 a of the light receiving device 130 .
  • the color filter 134 selectively absorbs, reflects or transmits light incident thereon according to the wavelength of the incident light.
  • the color filter 134 selectively transmits therethrough light of a color that is emitted from the organic EL device 120 of the corresponding pixel, while absorbing or reflecting light of any other color. With such a color filter, it is possible to reduce the influence of stray light coming from the environment and thus to read image information with a high precision.
  • FIG. 16 illustrates a structure where the color filter 134 is provided immediately under the light receiving surface 130 a of the light receiving device 130
  • the structure is not limited to this as long as the color filter 134 overlaps with at least a portion of the light receiving surface 130 a .
  • the color filter 134 may be provided on the lower surface (the surface on the panel back side) of the substrate 111 .
  • the color filter 134 may be provided for every light receiving device 130 of the display panel 110 , or may alternatively be provided only for some of the light receiving devices 130 .
  • FIG. 17 , FIG. 18 and FIG. 19 illustrate display apparatuses 500 A, 500 B and 500 C, respectively, according to still another embodiment of the present invention.
  • the display apparatuses 500 A, 500 B and 500 C each differ from the display apparatus 300 in that the display panel 110 includes a light blocking layer 140 between the organic EL device 120 and the light receiving device 130 .
  • the light receiving device 130 receives, at the light receiving surface 130 a , light reflected by the irradiated object on the panel back side so as to detect the intensity of the light. In this process, if light from a light emitting device is directly incident on the light receiving device 130 , the light receiving device 130 may operate erroneously. This is because the light receiving device 130 in some cases includes a member having semiconductor characteristics (e.g., a semiconductor film).
  • the light blocking layer 140 is provided between the light emitting device (the organic EL device 120 ) and the light receiving device 130 , thereby preventing the light receiving device 130 from being directly irradiated with light from the light emitting device and thus preventing the light receiving device 130 from operating erroneously.
  • the reliability of the display apparatus the reliability in reading image information.
  • the light blocking layer 140 may be provided on the upper surface of the cathode 124 b , as illustrated in FIG. 17 , or on the lower surface of the cathode 124 b , as illustrated in FIG. 18 .
  • the light blocking layer 140 may be a light absorbing film or a light reflecting film (e.g., a metal film).
  • a portion of light emitted from the light emitting layer 122 is reflected by the light blocking layer 140 toward the panel front side, thereby improving the display brightness.
  • the light blocking layer 140 may be formed directly on the light receiving device 130 , as illustrated in FIG. 19 .
  • FIG. 20 , FIG. 21 and FIG. 22 illustrate display apparatuses 600 A, 600 B and 600 C, respectively, according to still another embodiment of the present invention.
  • the display apparatuses 600 A, 600 B and 600 C differ from the display apparatus 200 in that the display panel 110 includes a light converging section 150 provided on the panel back side of the organic EL device 120 .
  • the light converging section 150 is provided on the panel back side of the light emitting device (the organic EL device 120 ), whereby light output from the light emitting device toward the panel back side and/or light reflected by the irradiated object to be incident on the light receiving device 130 is converged.
  • the light emitting device the organic EL device 120
  • the light converging section 150 includes microlenses 150 a and 150 b that are formed in the substrate 111 on which the light emission control section 112 and the light receiving device 130 are to be formed, as illustrated in FIG. 20 .
  • the microlens 150 a opposing the opening 124 b 1 of the cathode 124 b functions to converge light that is emitted from the light emitting layer 122
  • the microlens 150 b opposing the light receiving surface 130 a of the light receiving device 130 functions to converge light that is reflected by the irradiated object so as to be incident on the light receiving device 130 .
  • the microlenses 150 a and 150 b can be formed in the substrate 111 during the production of the substrate 111 .
  • the shape and arrangement of the microlenses 150 a and 150 b may be determined appropriately according to the material, the refractive index, the thickness, etc., of each component of the display panel 110 . Note that one of the microlenses 150 a and 150 b may be omitted.
  • the light converging section 150 may be a meniscus-shaped transparent film (hereinafter referred to as “meniscus film”) 150 c provided in the opening 124 b 1 in the cathode 124 b and having a function as a lens, as illustrated in FIG. 21 .
  • the meniscus film 150 c provided in the opening 124 b 1 in the cathode 124 b converges light that is emitted from the light emitting layer 122 .
  • the meniscus film 150 c can be formed by dripping a small amount of a solution in which the material of the meniscus film 150 c is dissolved into the opening 124 b 1 in the cathode 124 b and then letting the solvent to evaporate.
  • the shape of the meniscus film 150 c is determined by the wettability (wettability for the solution to be dripped) of the conductive film (the cathode 124 b ) surrounding the opening 124 b 1 and that of the member under the cathode 124 b (the flattening layer 114 in the illustrated example).
  • the meniscus film 150 c suitable for converging light can be formed by appropriately adjusting the wettability and the material, the refractive index, etc., of each component.
  • the light converging section 150 may be a sloped section 150 d formed in the substrate 111 , as illustrated in FIG. 22 .
  • the sloped section 150 d is a depression formed on the lower surface (the surface on the panel back side) of the substrate 111 .
  • the depression has a protruding surface with respect to the straight line between the opening 124 b 1 and the light receiving device 130 , whereby light emitted from the light emitting layer 122 and light reflected by the irradiated object 10 so as to be incident on the light receiving device 130 can be redirected so that the light is efficiently guided to the light receiving device 130 .
  • the organic EL device 120 is used as the light emitting device.
  • the organic EL device 120 includes the light emitting layer 122 , which contains light emitting molecules.
  • the light emitting device includes a layer that contains light emitting molecules 122 a
  • the light emitting molecules 122 a are oriented so as to be generally parallel to one surface 110 a of the display panel 110 on the panel back side and generally perpendicular to a straight line (virtual line) 118 between the opening 124 b 1 and the light receiving device 130 , light that is emitted from the light emitting layer 122 containing the light emitting molecules 122 a can be efficiently incident on the light receiving device 130 , for the following reason.
  • the light emitting molecule (organic light emitting molecule) 122 a contained in an organic EL device, or the like, has anisotropy in its emission brightness, as illustrated in FIG. 24 (Appl. Phys. Lett. 71 (18), 3 Nov. 1997, etc.). Specifically, while the light emitting molecule 122 a emits light in its short axis directions (the x axis direction and the z axis direction in FIG. 24 ), it emits substantially no light in its long axis direction (the y axis direction in FIG. 24 ).
  • the light emitting molecules 122 a are oriented in a certain direction, as compared with a case where they are in a random orientation, the light emission can be made directional, and the light can be incident on the light receiving device 130 more efficiently.
  • the light emitting molecules 122 a are oriented in a direction such that light that spreads in the short axis direction of the light emitting molecules 122 a can be efficiently output through the opening 124 b 1 onto the light receiving device 130 .
  • the light emitting molecules 122 a are oriented so as to be generally parallel to the surface 110 a of the display panel 110 on the panel back side and generally perpendicular to the straight line (virtual line) 118 between the opening 124 b 1 and the light receiving device 130 , as illustrated in FIG. 23A and FIG. 23B , whereby light emitted from the light emitting layer 122 containing the light emitting molecules 122 a can be efficiently incident on the light receiving device 130 .
  • the light emitting molecules 122 a are oriented so as to be generally parallel to the straight line (virtual line) 118 between the opening 124 b 1 and the light receiving device 130 , for example, as illustrated in FIG. 25A and FIG. 25B , light emitted from the light emitting layer 122 containing the light emitting molecules 122 a may not efficiently be output onto the light receiving device 130 .
  • the light emitting molecules 122 a can be oriented by any of various methods, including a method of providing an orientation regulating film under the light emitting layer 122 , a rubbing method, an electric field treatment method, and an inclined vapor deposition method, selected depending on the material of the light emitting layer 122 .
  • a charge is injected into a light emitting layer interposed by an anode, a cathode and a charge transport film, and excitation/light emission occurs through charge recombination in the light emitting layer. Since the light emitting layer itself has a charge transporting capability, the light emitting layer emits light while transporting a charge. However, the light emitting layer is liable to more transport a charge of one of hole and electron than the other, and light is emitted from a particular portion of the light emitting layer, not from the entire layer.
  • the center of light emission is often shifted toward the anode side when the light emitting layer has an electron transporting capability, whereas it is often shifted toward the cathode side when the light emitting layer has a hole transporting capability. Therefore, by controlling the localization of the light emitting portion in the light emitting layer, light can be efficiently emitted through the back surface. Specifically, in a case where an opening is provided in the back side electrode through which emitted light is output, it is preferred that the light emitting portion of the light emitting layer is localized toward the electrode that includes the opening therein.
  • the light emitting layer 122 having an electron transporting capability (having a high electron transporting capability) is used in the organic EL device 120 including the anode 124 a on the back side and the cathode 124 b on the front side, as illustrated in FIG. 26A , light emission occurs only in the vicinity of the anode 124 a .
  • Countless equipotential lines are defined perpendicular to the lines of electric force represented by arrows in FIG. 26A , and a light emitting portion 125 extends along the equipotential lines. Therefore, as illustrated in FIG.
  • the read signal when displaying an image in a gray scale while reading the image simultaneously, the read signal can be corrected by using known gray scale signals so as to obtain an appropriate read image signal.
  • the display apparatus of the present invention and the image reading/displaying system incorporating the same are useful for a display apparatus capable of reading an image in addition to displaying an image, and an image reading/displaying system incorporating the same, and are particularly suitable for displaying and reading image information with a simple, thin and light-weight structure.

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  • Signal Processing (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Sustainable Development (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Electroluminescent Light Sources (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Facsimile Heads (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Solid State Image Pick-Up Elements (AREA)
  • Transforming Light Signals Into Electric Signals (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070241998A1 (en) * 2004-03-17 2007-10-18 Koninklijke Philips Electronics, N.V. Electroluminescent Display Devices
US20110310072A1 (en) * 2009-02-12 2011-12-22 Sharp Kabushiki Kaisha Display panel and display device
US8766338B2 (en) 2010-03-12 2014-07-01 Semiconductor Energy Laboratory Co., Ltd. Semiconductor device including photosensor and transistor having oxide semiconductor
US8878754B2 (en) 2004-04-28 2014-11-04 Semiconductor Energy Laboratory Co., Ltd. Display device
CN109962085A (zh) * 2017-12-25 2019-07-02 上海耕岩智能科技有限公司 一种监控显示像素发光强度的方法和装置
US11367767B2 (en) * 2018-11-01 2022-06-21 Boe Technology Group Co., Ltd. Light emitting diode and fabrication method thereof, array substrate and display panel
US11394014B2 (en) 2019-08-29 2022-07-19 Semiconductor Energy Laboratory Co., Ltd. Display unit, display module, and electronic device
US11789568B2 (en) 2018-12-28 2023-10-17 Semiconductor Energy Laboratory Co., Ltd. Display device
US12048227B2 (en) 2019-02-15 2024-07-23 Semiconductor Energy Laboratory Co., Ltd. Display device, display module, and electronic device
US12096659B2 (en) 2018-09-14 2024-09-17 Semiconductor Energy Laboratory Co., Ltd. Display device, display module, and electronic device

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7068729B2 (en) 2001-12-21 2006-06-27 Digital Fountain, Inc. Multi-stage code generator and decoder for communication systems
JP4667248B2 (ja) * 2003-02-28 2011-04-06 株式会社半導体エネルギー研究所 表示装置
JP4763248B2 (ja) * 2004-04-07 2011-08-31 株式会社 日立ディスプレイズ 画像表示装置
JP4843911B2 (ja) * 2004-06-14 2011-12-21 ソニー株式会社 撮像素子およびカメラ
JP4831456B2 (ja) * 2004-09-16 2011-12-07 カシオ計算機株式会社 画像読取装置
JP4736433B2 (ja) * 2005-01-11 2011-07-27 セイコーエプソン株式会社 発光装置、その製造方法、画像形成装置、および画像読み取り装置
JP2006295837A (ja) * 2005-04-14 2006-10-26 Fuji Photo Film Co Ltd 多機能電子シート
JP4631662B2 (ja) * 2005-05-27 2011-02-16 株式会社豊田自動織機 面光源装置、光学部材、該光学部材を用いた原稿読取装置及び面光源装置
KR100762682B1 (ko) * 2006-05-03 2007-10-01 삼성에스디아이 주식회사 유기 전계 발광표시장치 및 그의 제조방법
WO2008047677A1 (fr) * 2006-10-19 2008-04-24 Sharp Kabushiki Kaisha Appareil d'affichage
JP5338032B2 (ja) * 2007-03-26 2013-11-13 セイコーエプソン株式会社 電気光学装置および電子機器
WO2008149706A1 (ja) * 2007-06-07 2008-12-11 Sharp Kabushiki Kaisha 表示装置、タッチパネル、及び、検知方法
JP2009175198A (ja) 2008-01-21 2009-08-06 Sony Corp Ｅｌ表示パネル及び電子機器
CN102132233B (zh) * 2008-09-02 2013-11-13 夏普株式会社 显示装置
JP2011043729A (ja) * 2009-08-24 2011-03-03 Sony Corp 表示装置および電子機器
JP5007844B2 (ja) * 2010-01-29 2012-08-22 ソニー株式会社 Ｅｌ表示パネル及び電子機器
EP3791571B1 (en) * 2018-05-08 2024-04-03 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Terminal device and image capturing method
US11121280B2 (en) 2018-10-03 2021-09-14 Innolux Corporation Display device with image sensor
WO2021240291A1 (ja) * 2020-05-29 2021-12-02 株式会社半導体エネルギー研究所 光機能デバイス、機能パネル、表示装置、入出力装置、情報処理装置
WO2022200905A1 (ja) * 2021-03-25 2022-09-29 株式会社半導体エネルギー研究所 半導体装置および電子機器

Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4366501A (en) * 1978-04-23 1982-12-28 Canon Kabushiki Kaisha Image recording system
US5313055A (en) * 1991-09-30 1994-05-17 Fuji Xerox Co., Ltd. Two-dimensional image read/display device
US5327503A (en) * 1991-01-31 1994-07-05 Sharp Kabushiki Kaisha Image inputting equipment
US5331434A (en) * 1992-10-27 1994-07-19 Cordata, Inc. Integral computer scanning system
US5446564A (en) * 1992-06-03 1995-08-29 Casio Computer Co., Ltd. Liquid crystal display device having photosensor at each pixel
US5483263A (en) * 1993-07-05 1996-01-09 U.S. Philips Corporation Electro-optic device
US5523555A (en) * 1994-09-14 1996-06-04 Cambridge Display Technology Photodetector device having a semiconductive conjugated polymer
US5585817A (en) * 1992-05-20 1996-12-17 Sharp Kabushiki Kaisha Apparatus and a method for inputting/outputting an image
US5920401A (en) * 1993-12-29 1999-07-06 Xerox Corporation Compact document imager
US5929845A (en) * 1996-09-03 1999-07-27 Motorola, Inc. Image scanner and display apparatus
US6040810A (en) * 1996-01-08 2000-03-21 Sharp Kabushiki Kaisha Display device having display and imaging pixels sandwiched between same substrates
US6295390B1 (en) * 1994-08-23 2001-09-25 Canon Kabushiki Kaisha Image input/output apparatus with light illumination device for two-dimensional illumination
US20020061418A1 (en) * 2000-09-29 2002-05-23 Yasuo Imanishi Organic Electroluminescence device and photoelectron device using said electroluminescence device
US7030551B2 (en) * 2000-08-10 2006-04-18 Semiconductor Energy Laboratory Co., Ltd. Area sensor and display apparatus provided with an area sensor

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5145699A (ja) * 1974-10-18 1976-04-19 Nitto Chemical Industry Co Ltd Seisannoseizoho
JPS5219301A (en) * 1975-08-05 1977-02-14 Komatsu Ltd Pressure compensation control system
JP3526634B2 (ja) * 1994-09-26 2004-05-17 アビックス株式会社 画像読み取り機能を備えたスキャン式表示装置
CN1049500C (zh) * 1993-11-01 2000-02-16 摩托罗拉公司 含有反射型全息光元件的液晶显示器
JPH09106773A (ja) * 1995-10-13 1997-04-22 Matsushita Electric Ind Co Ltd 表示素子および多色表示素子
JP3008859B2 (ja) * 1996-09-18 2000-02-14 日本電気株式会社 薄型光源を用いたイメージセンサ装置
WO1998048322A1 (fr) * 1997-04-22 1998-10-29 Matsushita Electric Industrial Co., Ltd. Afficheur a cristaux liquides a fonction de lecture d'image, procede de lecture d'image et procede de fabrication associe
JP2001130049A (ja) * 1999-11-08 2001-05-15 Canon Inc 発光装置およびそれを用いた露光装置、記録装置
JP2001277591A (ja) * 2000-03-31 2001-10-09 Seiko Epson Corp 画像映し込み装置、カメラおよびプリンタ
JP2002072963A (ja) * 2000-06-12 2002-03-12 Semiconductor Energy Lab Co Ltd 発光モジュールおよびその駆動方法並びに光センサ
JP3843703B2 (ja) * 2000-06-13 2006-11-08 富士ゼロックス株式会社 光書き込み型記録表示装置
JP2002176162A (ja) * 2000-08-10 2002-06-21 Semiconductor Energy Lab Co Ltd エリアセンサ及びエリアセンサを備えた表示装置
JP2002158095A (ja) * 2000-09-06 2002-05-31 Sharp Corp 回折構造体を備えた自発光型表示素子
JP3501121B2 (ja) * 2000-12-14 2004-03-02 日本電気株式会社 光ヘッドおよびそれを用いた画像形成装置
JP4543560B2 (ja) * 2001-02-09 2010-09-15 日本電気株式会社 表示機能を内蔵した画像入力装置

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4366501A (en) * 1978-04-23 1982-12-28 Canon Kabushiki Kaisha Image recording system
US5327503A (en) * 1991-01-31 1994-07-05 Sharp Kabushiki Kaisha Image inputting equipment
US5313055A (en) * 1991-09-30 1994-05-17 Fuji Xerox Co., Ltd. Two-dimensional image read/display device
US5585817A (en) * 1992-05-20 1996-12-17 Sharp Kabushiki Kaisha Apparatus and a method for inputting/outputting an image
US5446564A (en) * 1992-06-03 1995-08-29 Casio Computer Co., Ltd. Liquid crystal display device having photosensor at each pixel
US5331434A (en) * 1992-10-27 1994-07-19 Cordata, Inc. Integral computer scanning system
US5483263A (en) * 1993-07-05 1996-01-09 U.S. Philips Corporation Electro-optic device
US5920401A (en) * 1993-12-29 1999-07-06 Xerox Corporation Compact document imager
US6295390B1 (en) * 1994-08-23 2001-09-25 Canon Kabushiki Kaisha Image input/output apparatus with light illumination device for two-dimensional illumination
US5523555A (en) * 1994-09-14 1996-06-04 Cambridge Display Technology Photodetector device having a semiconductive conjugated polymer
US6040810A (en) * 1996-01-08 2000-03-21 Sharp Kabushiki Kaisha Display device having display and imaging pixels sandwiched between same substrates
US5929845A (en) * 1996-09-03 1999-07-27 Motorola, Inc. Image scanner and display apparatus
US7030551B2 (en) * 2000-08-10 2006-04-18 Semiconductor Energy Laboratory Co., Ltd. Area sensor and display apparatus provided with an area sensor
US20020061418A1 (en) * 2000-09-29 2002-05-23 Yasuo Imanishi Organic Electroluminescence device and photoelectron device using said electroluminescence device

Cited By (16)

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Publication number Priority date Publication date Assignee Title
US8310413B2 (en) * 2004-03-17 2012-11-13 Koninklijke Philips Electronics N.V. Electroluminescent display devices
US20070241998A1 (en) * 2004-03-17 2007-10-18 Koninklijke Philips Electronics, N.V. Electroluminescent Display Devices
US9997099B2 (en) 2004-04-28 2018-06-12 Semiconductor Energy Laboratory Co., Ltd. Display device
US8878754B2 (en) 2004-04-28 2014-11-04 Semiconductor Energy Laboratory Co., Ltd. Display device
US9231001B2 (en) 2004-04-28 2016-01-05 Semiconductor Energy Laboratory Co., Ltd. Display device
US20110310072A1 (en) * 2009-02-12 2011-12-22 Sharp Kabushiki Kaisha Display panel and display device
US8766338B2 (en) 2010-03-12 2014-07-01 Semiconductor Energy Laboratory Co., Ltd. Semiconductor device including photosensor and transistor having oxide semiconductor
US9066035B2 (en) 2010-03-12 2015-06-23 Semiconductor Energy Laboratory Co., Ltd. Semiconductor device including photosensor and transistor having oxide semiconductor active layer
US9985069B2 (en) 2010-03-12 2018-05-29 Semiconductor Energy Laboratory Co., Ltd. Semiconductor device
CN109962085A (zh) * 2017-12-25 2019-07-02 上海耕岩智能科技有限公司 一种监控显示像素发光强度的方法和装置
US12096659B2 (en) 2018-09-14 2024-09-17 Semiconductor Energy Laboratory Co., Ltd. Display device, display module, and electronic device
US11367767B2 (en) * 2018-11-01 2022-06-21 Boe Technology Group Co., Ltd. Light emitting diode and fabrication method thereof, array substrate and display panel
US11789568B2 (en) 2018-12-28 2023-10-17 Semiconductor Energy Laboratory Co., Ltd. Display device
US12099686B2 (en) 2018-12-28 2024-09-24 Semiconductor Energy Laboratory Co., Ltd. Display device
US12048227B2 (en) 2019-02-15 2024-07-23 Semiconductor Energy Laboratory Co., Ltd. Display device, display module, and electronic device
US11394014B2 (en) 2019-08-29 2022-07-19 Semiconductor Energy Laboratory Co., Ltd. Display unit, display module, and electronic device

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AU2003238709A1 (en) 2004-02-02
WO2004008736A1 (en) 2004-01-22
TWI226595B (en) 2005-01-11
TW200414095A (en) 2004-08-01
CN100346627C (zh) 2007-10-31
JP2004045636A (ja) 2004-02-12
CN1669296A (zh) 2005-09-14

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